internal/history: document Go 1.18.2 and Go 1.17.10
internal/history: document Go 1.18.2 and Go 1.17.10

Lots of CLs this time so I'd appreciate a careful review.

Change-Id: I9fa7194e32f9335e6617cf89a1b41206c3bae945
Reviewed-on: https://go-review.googlesource.com/c/website/+/405479
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: David Chase <ae171625adc8645b8b79b7e405a6da5aba5341e0@google.com>
Run-TryBot: Heschi Kreinick <e89ab2b172855aa0ad01c40c4d8a3535a61ac68a@google.com>

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website